To Everything There Is a Season

Mitch's mother Irene comes to Los Angeles for her annual visit. However, this year Mitch and Hobie realize that everything isn't what it used to be. Irene not only forgets her carry-on bag on the plane, she goes onto the wrong plane as well. Because of this Mitch thinks that something is seriously wrong with her.
Later Irene shows up at headquarters, telling Mitch she can't remember where Hobie's school is or the name of it. Mitch convinces Irene to see a doctor. It turns out that Irene has Alzheimer's disease. She wants to tell Hobie herself. She does that while they are walking in Venice and when Hobie goes to get some hot dogs, a mom and her child comes up to her asking for direction. When Irene doesn't remember the answer to their question, she gets confused and runs away. Hobie runs to headquarters and tells Mitch about it and he organizes a search.
Meanwhile, Irene gets robbed by two guys and her purse is later found by Hobie, J.B. and Connor. Mitch is finally able to find Irene

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